Ore deposits contain high amounts of

a)
water
b)
volcanic magma
c)
metals
d)
minerals

The answer is D) Minerals

Hope this helps.

D) minerals

Explanation:

Mineral deposits contain large amounts of minerals and are generated by geological processes resulting from the transformations that have been taking place in the Earth's crust since the Precambrian era, over 4.5 million years ago, when the first rocks of the planet solidified.

Each mineral deposit has a unique genesis and is therefore unique. Given the multiplicity of minerals, it is necessary to group those that look similar in order to define types or categories that are easily referenced and identified.